231 30 st heat shrink sleeve ver 1809.10) ... the premier 30 st heat shrink sleeve with indicator...

Click here to load reader

Post on 23-Jul-2020

1 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • Page 1 of 3 Denso (Australia) Pty Ltd pursue a policy to develop and continually improve all of our products and therefore the information given in this data sheet is intended as a general guide and does not constitute a warranty of specification. However, our sales personnel are committed to assist the user in establishing the suitability of the product for its intended purpose and additional specific information is available on request.

    Issue date: 10/09/18

    PremierTM 30 ST Heat Shrink Sleeve with indicator and separate closure patch

    Application

    The Premier™ 30 ST Heat Shrink Sleeve with indicator and separate closure patch is a warm applied shrinkable wrap-around sleeve. It is used for the protection of welded seams on buried or above ground pipelines and can be applied on site. After surface preparation of the area to be wrapped to ISO 8501-1 St2-St3, the use of a primer is not necessary.

    Required Materials and Equipment

    • Premier™ 30 ST Heat Shrink Sleeve

    • Closure Patch

    • Wire brush

    • Propane torch

    • Working gloves

    • Brush

    • Rash with semi-circular blade

    • Roller

    Ensure the heat shrink sleeve is wide enough to overlap the factory coating 50 mm minimum. Bevel the edges with a rasp with semi-circular blade to an angle of 30°.

    Preheat the pipe to remove moisture, if necessary. Clean the pipe surface thoroughly (St 2 – St 3) with a hand wire brush. Remove rust, dirt and other residues.

    Abrade the adjacent factory coating (including the beveled edges) by 100 mm on both sides of the joint.

    The surface of the steel and adjacent coating shall be free of grease, oil and dust. If solvent cleaning is required this shall be carried out according to SSPC SP 1 using approved solvent.

    Dry the pipe and warm the area where the sleeve will overlap itself (exposed pipe plus adjacent factory coating) up to 50°C.

    Measure the preheating temperature with an appropriate temperature sensor.

    2 3

    4 5 6

  • Page 2 of 3 Denso (Australia) Pty Ltd pursue a policy to develop and continually improve all of our products and therefore the information given in this data sheet is intended as a general guide and does not constitute a warranty of specification. However, our sales personnel are committed to assist the user in establishing the suitability of the product for its intended purpose and additional specific information is available on request.

    Issue date: 10/09/18

    Heat up the applied end of the sleeve with blue-yellow flame, so that a 20 cm portion of the sleeve sticks to the pipe.

    Roll on the edges of the end of the sleeve with a roller until butyl rubber flows out of the sides.

    Remove the release film completely from the remainder of the sleeve.

    Tightly wrap the sleeve around the pipe. Adjust and warm up the rubber with blue-yellow flame.

    Stick the sleeve all the way around the pipe overlapping onto the underlap. Warm up the overlapping area.

    Roll on the overlapping area.

    A bead of extruded butyl rubber is visible at the edge of the sleeve.

    Warm one end of the adhesive side of the closure patch with a gas flame. Position the warmed side of the patch over the exposed edge of the sleeve.

    Progressively warm along the length of the closure patch and press on it until butyl adhesive is visible out of the side.

    Remove approx. 300 mm of the release film from the whole width of the mitred end of the sleeve. Warm up the butyl rubber using the propane torch.

    Place the sleeve on the preheated area of the pipe.

    Roll on the underlap with a roller.

    7 8 9

    10 11 12

    13 14 15

    16 17 18

  • Page 3 of 3 Denso (Australia) Pty Ltd pursue a policy to develop and continually improve all of our products and therefore the information given in this data sheet is intended as a general guide and does not constitute a warranty of specification. However, our sales personnel are committed to assist the user in establishing the suitability of the product for its intended purpose and additional specific information is available on request.

    Issue date: 10/09/18

    Continue warming up the adhesive side of the closure patch and position it over the whole sleeve width in the overlapping area.

    Roller the closure patch in the overlapping area. Let the installed closure patch cool down before continuing with the application.

    Beginning below, heat up the middle of the sleeve, moving the torch in a circumferential direction with blue- yellow flame. Use the same motion to shrink one side, then the other side. Ensure even shrinkage.

    When sufficient temperature is reached, the texture of the sleeve will become smooth. The shrinking procedure is finished when the sleeve is tightly fitting everywhere and appears smooth.

    Roller the transition to the factory coating, the edge of the sleeve, the overlap of the sleeve and the area of the welded seam.

    Health and Safety

    These application instructions do not constitute a risk assessment. We recommend that installation is carried out with due regard to health and safety and in accordance with relevant local statutes and regulations. Safety Data Sheets are available on request.

    DENSO (AUSTRALIA) PTY LTD 77 - 95 National Boulevard Campbellfield, VIC 3061

    Tel: +61 3 9356 7600 Fax: +61 3 9356 7699

    www.densoaustralia.com.au

    A Member of the Winn & Coales International

    19 20 21

    22 23